Sparking igniter.



PATEN'TED MAR. a. 1908 P. GAETH, SPARKING IGNITER.

APPLICATION FILED APR. 9, 1907,

avwenkoz PAUL GA-ETH', or CLEVELAND, onto;

SPARRING IGNI'rE'R.

' Specification of Letters Patent.

Patented mm s, 1908..

Application filed April 9 1907. Serial No. S G'ZNQ.

To all ,uhom Hurry concern;

- Beitl known that 1, PAUL GARTH, a citizen of the United States, "residing at Cleveland, in'the countyof .Cuyahoga'and State of Ohio, have invented certain new and useful Improvements in Sparking Ig11iters, of which the following is aspecification.

This invention relates particularly to sparking igniters of the make andbreaik type forinternal combustion engines, and has for its object to provide improvedmeans for operating, in proper'sequence, the sparkers of multiple cylinder engines, said operation being effected by connections or means actuated by a single operating -shaft. 1111- proved means are also provided for adjusting the operating shaft so as to'advanc e or retard the ignition, the adjustment being the same for all the cylinders, thereby maintaining the proper timing of the respective cylinders in all positions.

The invention is illustrated in the accom-- panying drawings. in which Figure 1 is a plan view of four sparkers and theoperating mechanism. Fig. '2 a side elevation thereof. Fig; 3 isanend view of the 'djusting device.

Ref rring specifically to-the drawings, 6 indicates a make and break sparker, which may be of the type having a. fixed electrode 64 and a rocking electrode 7. carried at the inner end of the trigger stem 10 whichextends through the plug and carries at its out-erend a spring-actuated triggerlT.

As shown inthe drawings, there are four of these sparkers, the arrangement being suitable for a four cylinder engine, one of the sparkers being applied to each cylinder.

'23, indicates a bearing bracket sleeve having feet 7 whereby it may be bolted to the cylinder, and having arms '27 to support other-parts to be hereinafter described.

25 indicates an operating shaftextending through the sleeve and supported therein by acollar 38 at the top, which collar carries double crank pins 26 and 26 which are connected by a table 37 The crank pins are set respectively on a quarter. and act to operate the two pairs of push rods by which the triggrs et'the respective sparkers are actuated,

The upper crank pin 26 carries the op-' positely extending long pdshrods 16. these rods being halved and lapped, as indicated at 35, so as to extend in alinement with each other. They work respectively over spools 29 supported by bolts IO on the arms 27,-

push rods are adapted to. actuate and is slidable on the main camshaft 42 of and the y are held to the spools by means of; springs 15 connected to fingers 11'. These the sparkers of the two end cylinders.

The inner or lower pair ofzshort :push rods 16 are connected in a manner similar to that,

above described to the lower crank'pin 26",

are'held bygthe springs 15, and actuate the. two intermediate sparkersi The trigge'rsof the respective sparkers, on opposite sides ofthwshaft 25 (which is located between thetwo intermediate cylinders) project in op osite directions on opposite sides of a line rawn through the axesof the four sparkers, and the push rods on the respective sides of the shaft 25 are positioned on opposite sides of the spools, 29 and 29,

. giving thereby a directly opposite motion or reciprocation of the push rods. Theupper and lower airs being seton quarters, the rotationiof t ej shaft 25 causes the push rods to actuate the triggers of the four cylinders in succession. Obviously by setting the crank pins at halves two sparkers may be simultaneously actuated; but the successive o eration suits the preferred construction an o eration of four cylinder engines, particularly those used in automobile work.

The shaft 25 may be set forwardor back to advance or retard the spark. It carries a. spiral gear 49 in mesh with a spiral gear 39 which is formed with a sleeveand a collar 45 the engine; The collar 45 is engaged by a splitsleeve 48 which movable along the cam shaft by means of a crank pin 50 projecting from a shaft '22 which may be extended to a position convenient for operation. By turning the shaft 22 the split; sleeve 48 may be moved one way or the other along the cam shaft 42, carrying'with itv the spiral gear 39 and thereby turning the shaft 25 to varv the set of saidshaft with respectto the stroke of the engine and to advance or retard the opand work over spools 29 against which they eration .of the sparkers accordingly, at all four cylinders.

'hen the shaft 25 is turned the=push rods advance in succession against the respective triggers and turn the same until, in consequence of the lateral movement or vibration over the spools '29-and '39 the outer ends of the push rods are caused to slip off the triggers. The advance movement brings the electrodes of the sparkers together, and when w the push rods slip off the triggers, the electrodes are snapped apart by the trigger ers, thereby drawing a spark at the time of spring, in a manner well-known in such sparka the separation.

. inventive idea may be utilized in various modifications.

I claim:

1. The combination with quadruple sparkers arranged in a row and'having movable electrodes, of an operating shaft at the middle of the row having a pair of cranks set at a uarter to each other, and a pair of opposltely extending push rods'connected toeach crank and extending toward the sparkers and arranged to operate said electrodes, one palr site ends of the row and the other being s ort' to operate the intermediate sparkers.

2. The combination with a plurality of having-a crank, and push rods connected to the crankand extending at various angles toward the sparkers and arranged to operate said electrodes, guide rollers over which the push rods Work, and means to hold the rods thereto,

In testimony whereof I do affix my signature, in presence of two witnesses.

- PAUL GAETH.

Vitnesses: 7 Joan A. BOMMHARDT,

SHIRLEY J. BOMMHARDT.

sparkershaving rocking electrodes, of a shaft 

